UL standard for UL 9

ULStandards: UL standard for UL 9

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UL standard for UL 9

1 Scope

1.1 These methods of fire tests are applicable to window assemblies, including glass block and other light transmitting assemblies, for use in the protection of openings in vertical fire resistive assemblies.

1.1 revised April 12, 2005 issued April 12, 2005

1.2 Assemblies classified in accordance with this standard provide only limited protection from the transmission of heat. This standard provides guidance to measure the heat flux emitted through the test specimen during the fire exposure and temperatures on the unexposed surface.

1.2 revised April 12, 2005 issued April 12, 2005

1.3 Tests made in conformity with these test methods shall not be construed as determining suitability of window assemblies for continued use after fire exposure.

1.3 revised April 12, 2005 issued April 12, 2005

1.4 These methods are intended to evaluate the ability of a window or other light transmitting assembly to remain in an opening during a predetermined test exposure.

1.5 The tests expose a specimen to a standard fire exposure controlled to achieve specified temperatures throughout a specified time period, followed by the application of a specified standard fire hose stream. The exposure, however, may not be representative of all fire exposure conditions, which may vary with changes in the amount, nature, and distribution of fire loading; ventilation; compartment size and configuration; and heat sink characteristics of the compartment. It does, however, provide a relative measure of fire performance of window assemblies under these specified exposure conditions.

1.5 revised April 12, 2005 issued April 12, 2005

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